Air filter for ventilation equipment



2. Air filter for ventilation equipment

2.1 is a top view of an air filter for ventilation equipment;

2.2 is a bottom view thereof;

2.3 is a left side view thereof;

2.4 is a right side view thereof;

2.5 is a front view thereof;

2.6 is a back view thereof; and

2.7 is a top perspective view thereof.

The broken lines in the drawings illustrate portions of the air filter for ventilation equipment which form no part of the claimed design. 

CLAIM I claim, the ornamental design for an air filter for ventilation equipment, as shown and described. 